MAX20357EWX+

MAX20357EWX+ is a power line communication (PLC) with ModelGauge™ m5 EZ fuel gauge and charger. This provides a complete system solution for charging and data transfer between a charging case and battery powered device over a single contact. The PLC interface is capable of 100kpbs throughput while simultaneously providing 200mA of charging/system current per channel. A 4Mbaud half duplex data only UART mode provides an easy and fast method for firmware updates, debugging interface, and factory modes. The charger on device controls the output of the 3.3W buck-boost converter in the with dynamic voltage scaling (DVS). This integrates an ultra-low power fuel gauge which implements the ModelGauge™ m5 algorithm. The IC monitors a single-cell battery pack and supports internal current sensing. Applications include true wireless stereo headphones, augmented reality glasses, wearable devices.

• 36-WLP pin-package
• 100Kpbs system throughput, 166.7kbps bit rate, 200mA per output charging current
• Automatic earbud insertion/removal detection, 4Mbaud, half-duplex, data-only UART mode
• PLC controllable GPIOs, reset and shipping mode, high-efficiency autonomous charging system
• 400mA integrated linear charger
• Robust PLC output protection features, highly flexible moisture detection block
• Input current limiting, 8KV contact ESD protection
• Small solution size, low external component count
• Operating temperature range from -40 to +85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party